No, the "crushed" refers to his performance against Moore's.
Crushed.
I agree with that, but I am not looking at this as a "Moore vs. Rush" scenario. Rather, it's two separate concepts. One is protecting Rush's long-term development. The other is securing a veteran backup who has some knowledge of Linehan's system, and has been exposed to NFL defenses to some degree.
Personally, Moore wouldn't be my first choice. Luke McCown would be my preference, but he evidently hasn't recovered from the shoulder injury that hampered him in camp. In fact, he'd be my choice for a longer term backup if the need were to arise. Brandon Weeden and Matt Cassel are out there, but we've been there and done that. After those two, I can't think of anyone else with experience in this system to fill the job. Like I said, not my choice but I understand the thinking on the part of the staff. I would bet good money that the Cowboys aren't the only team that would take that kind of a step to shelter a rookie FA QB. Not saying another team would sign Moore, but that they'd find another veteran to fill the role for the purpose of protecting the rookie.
I'm not in favor of Kellen mooore as the backup, but I understand the reasoning. I'm am, however, on board with taking any and all precautions to shelter Cooper Rush until he's ready to handle an NFL defense. If one comes with the other, then I can live with it until there's someone else available.